Home / 5,436.20-8,155.38-2,515.34

Finding the Fourth Proportional to 5,436.20, 8,155.38 and 2,515.34

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Solution

The fourth proportional to 5,436.20, 8,155.38 and 2,515.34 is: 3,773.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.20 : 8,155.38 = 2,515.34 : x
  2. Step 2: Convert to fraction form
    5,436.20/8,155.38 = 2,515.34/x
  3. Step 3: Cross multiply
    5,436.20x = 8,155.38 × 2,515.34
  4. Step 4: Simplify right side
    5,436.20x = 20,513,553.53
  5. Step 5: Solve for x
    x = 20,513,553.53/5,436.20
  6. Step 6: Final answer
    x = 3,773.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.